How do I create a number + string?

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#1

Hey, I’m trying to make a code generator.

But I don’t know how to generate them.

math.random(1, 9000000)

Will just make numbers how can I mix numbers too?

1 Like
#2

Hello!

Not quite sure what exactly you’re looking for, I think others will be able to help you a little bit better if you elaborate a tad more. Are you trying to generate a random string, a random number or a random combination of both(or something in between).

For generating a random english character, I recommend putting the alphabet in a dictionary, like so:

local alphabet = {
	[1] = "a",
	[2] = "b",
	[3] = "c",
	-- and so on
}

and then generating a random number between 1 and 26, and indexing the alphabet dictionary by that random number.

Example:

local count = 0
local string1 = ""

repeat
count = count + 1
string1 = string1..alphabet[math.random(1,26)]
until
count == 10

print(string1) -- as long as you completed your alphabet table, this'll be a randomly generated string with 10 characters

Hope this helps.

1 Like
#4

Got an error:
Line 23: Attempt to concatenate string with nil

Not sure how to fix this.

#5

Do I need to add the full alphabet?

#6

Yes, you do need the full alphabet for this to work. Here’s the table to make your life a little bit easier:

local alphabet = {
	[1] = "a",
	[2] = "b",
	[3] = "c",
	[4] = "d",
	[5] = "e",
	[6] = "f",
	[7] = "g", 
	[8] = "h",
	[9] = "i",
	[10] = "j",
	[11] = "k",
	[12] = "l",
	[13] = "m",
	[14] = "n",
	[15] = "o",
	[16] = "p",
	[17] = "q",
	[18] = "r",
	[19] = "s",
	[20] = "t",
	[21] = "u",
	[22] = "v",
	[23] = "w",
	[24] = "x",
	[25] = "y",
	[26] = "z",
}
#7

Is there a way to mix it with numbers aswell?

#8

You can theoretically use this method to mix your string up with any character possible, but for numbers all you have to do is add the numbers 1-9(sorry lol) to the dictionary, and make it math.random(1,35) instead of math.random(1,26).

#9

I think you mean 0-9.

#10

Roblox includes a method for generating globally unique identifiers. HttpService:GenerateGUID()

You can cut out a substring if you want a shorter code.

local HttpService = game:GetService("HttpService")
local result = HttpService:GenerateGUID(false)
print(string.sub(result, 1, 8)) -- >8FDF653D
2 Likes
#11

I wasn’t aware of this option, certainly leagues more efficient. I’ll make sure to implement it in the future.